Bagasse-derived carbon electrodes were developed by doping with nitrogen functional groups and compositing with high-capacity MnO nanoparticles (MnO/NBGC). The bagasse-derived biochar was N-doped by refluxing in urea, followed by the deposition of MnO nanoparticles onto its porous surface the hydrothermal reduction of KMnO. Different initial KMnO loading concentrations ( 5, 10, 40, and 100 mM) were applied to optimize the composite morphology and the corresponding electrochemical performance.
View Article and Find Full Text PDFIn this study, butadiene sulfone (BS) was selected as an efficient electrolyte additive to stabilize the solid electrolyte interface (SEI) film on the lithium titanium oxide (LTO) electrodes in Li-ion batteries (LIBs). It was found that the use of BS as an additive could accelerate the growth of stable SEI film on the LTO surface, leading to the improved electrochemical stability of LTO electrodes. It can be supported by the BS additive to effectively reduce the thickness of SEI film, and it significantly enhances the electron migration in the SEI film.
View Article and Find Full Text PDFWe have systematically studied the effects of substitutional doping of p-type nanoparticulate NiO with cobalt ions. Thin films of pure and Co-doped NiO nanoparticles with nominal compositions Co(x)Ni(1-x)O(y) (0 ≤ x ≤ 0.1) were fabricated using sol-gel method.
View Article and Find Full Text PDFWe report the sonochemical synthesis of copper(I) hydride (CuH) by the ultrasonic irradiation of a copper(II) aqueous solution. A reaction mechanism based on the reduction of copper(II) by the ultrasound-generated hydrogen atoms is discussed. To the best of our knowledge, this is the first time that a metal hydride has been synthesized through sonochemistry.
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